Anyway for my vb class we need to write an auto inquiry system. Im a total n00b and am struggling altogether. My interface is below Basically what my problem is (among others) is that I don't know how to assign prices to each model from the combo box. This is what I used to populate the two boxes:
[Code]...
assign a particular value to each item in a combo box? Or, alternatively, some similar control? Specifically, I want a drop down list to select from a list of countries. I then want to get the ISO 2 letter abbreviation for the selected country. I could have a section of code like this
selected_country = cmb_country.SelectedItem.ToString()
if selected_country = "Afghanistan" Then
country_code = "AF"
ELSE IF selected_country = "Aland Islands" Then
[code]....
but this will get rather tedious.Is there an easier way to do it? I would like to be able to assign a value to each line in the list, like
Afghanistan, AF
Aland Islands, AX
Albania, AL
then get the value for the selected item. Is this possible? If not with a combo box, then any other control?
I have a property called ReplacementTo and I set a value to it based on the selecteditem from the combobox, like this:
classEquipmentItem.ReplacementTo = cmbReplcmnt.SelectedItem.ToString
Now I can't use cmbReplcmnt.Text because what I actually need is the value of that SelectedItem
So problem is, if the user leaves the combobox as blank, it throws a null exception.I decided to use the IIf function then:classEquipmentItem.ReplacementTo = IIf(IsNothing(cmbReplcmnt.SelectedItem.ToString), classEquipmentItem.ReplacementTo = "", cmbReplcmnt.SelectedItem.ToString)
Unfortunately I still get the error I tried using a Try-Catch for it and it worked, but I don't want to rely on the Try-Catch, so I was wondering is there a another way to work this through?
I used this code to created 2 combo boxes General and Specific...and Only show Specific (Combo when Combo A is chosen.....What i need now is to know how to assign specific values to the items in combo b (Specific).??? If i chose a sode, Fanta, i want the total price to be $10.00 (this price will show up in the finial price box..
View 4 RepliesI want to do a project in vb.net 2008 using database from MS Access 2007. I have to go from the main menu to the other forms, in each form I have to select one or more items, each item has a price (should be taken from the database *.accdb), then I have to return to the main menu, click the cost button to find the total cost of these items.
1. Where I have to write the code to access my database, in the main menu or in each form individually? and how to write it? I used the code found at:
http:[url]......
but after DEBUGging told me that it cannot see "Table1"?
2. When I am in one of the forms, do I have to "save" my selections, and how?
3. How do I exit from any of the forms to give me the total price to the step, form, I have reached?
4. The total cost should appear in a separate form (screen) at the same time should be saved?
I am trying to use if statements to add the prices of a cruises special packages together. I am using check boxes for the packages, so any, from none to all 3 are able to be checked. The packages available are VIP, excursion and restaurant. The price will also depend on the cruise length (7 or 10 day). I am wondering on which format to use, and if I even need to use if statements, how to make this statement true,
View 1 RepliesI have a school project, and for some reason in the book it doesn't show how to keep a variable cross sub functions. Can anyone give me a clue of what i'm doing wrong ?
Here is my code
Private Sub processButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles processButton.Click
[code].....
I'd like to ask about the way in ASP.NET VB to detect the changes in stocks prices, if the price inceased, the containing cell inside the grid blinks in green, decreased will blinks in red? ex: if the price now 10.00$ and increased to 10.01$ the containing cell will blink with 1 second in green..
View 1 RepliesI want to round the prices in the following manner: if it's 12.48 should be 12.99, if it's 12.98 it should be 12.99, if it's 12.10 should be 11.99 and so on.
View 39 Repliesi have a form and it has checkboxes that are different prices for options on a car. my problem is I don't know how to write the code to add the checkbox prices up to display in the lable.
View 4 RepliesIn calculating an item from a texfile that exists from menu_cmbselectedIndex,i want to display total number of items when i click a combobox and should also display total amount for those items.
View 2 RepliesI have a small app and i want to display the data (prices) from some hard drives from some site's. I use this code
Dim PageElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("img")
For Each CurElement As HtmlElement In PageElements
TextBox2.Text = TextBox2.Text & CurElement.GetAttribute("src") & Environment.NewLine
Next
I am trying to put together a simple form with prices assigned to Radio buttons and check boxes.
I started by creating a simple form with four Windows Form control, two check boxes and two radio buttons, there is also a NumberUpDown Control for quantity but I have not added that yet.
Basically the user make selections, the price is calculated with total and subtotal and displayed on a label.
I am trying to start as basic as possible then work my way up to more complex calculations as I progress.
Here is my Screw up version: :)
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
I want to add prices together which is in cells in a grid view and show the total in a text box.
View 9 RepliesI'm currently trying to create an Information System of customers who does have different prices for one generic set of products. For example, there's a list of customers, then once you choose one, the system will show a generic product list but a set of price list specifically encoded for that specific customer. I'm sorry but i'm not that good with databases, and I'm using ms access as the database and VB.Net as the programming language.
View 1 Repliesim having trouble coding a project Im supposed to Define a structure named Product. It should contain two member variables one a string variable called item number and another a double called Prices. In the form's load event procedure I should be able to the item numbers and prices from the ItemInfo.txt file, and store them in the module-level array. Furthermore, Im supposed to be able to add teh item numbers into the list box. There are no buttons just the Exit button. When user select the item the user should be able to see it in the lblPrice control.
Name: Glovers Project
' Purpose: Displays the price of an item
' Programmer: <your name> on <current date>
[code]....
For our programming assignment to end the module (which im really struggling with) we have to write some code for use in a fictional taxi firm that charges �2 for the first mile, one price for miles 2-10, and another for all miles thereafter.
View 11 RepliesAdmin assigns the authority and get a new form to the new assign in with vb.net & access. I am not sure about this,I need a way to do the new form assigned? How?Actually, this project is the admin will assign the authority to a manager, and the manager will get the password to log in. Then, the manager once log in and will get a form to set the rooms who is going to use and date, etc, this is multi-manager to handle the room setting jobs.But, I think, I got stuck, I am not sure how to do the new form, HOW DO YOU ASSIGN THIS NEW FORM FOR EACH NEW MANAGER?????? THIS IS VB.NET WITH ACCESS.
View 3 RepliesSweet candy store currently has a special offering of heart shaped candy. It comes in two sizes: small and large. The company sells the large one for $29.50 and the small for $16.25.Design an application to calculate how much a costumer owes. When the user clicks the "Calculate" button, the program gets the number of large and small chocolate hearts ordered from the textboxes, calculates and displays the extended price for each type of the chocolate in a label. The program also calculates the weight of the chocolate to determine the shipping cost, displays the total weight, the shipping cost and the final total due. The large chocolate weighs 4 pounds 10 ounces, and the small one weighs 2 pounds 14 ounces. Shipping cost is 35 cents per pound and 3 cents for each additional ounce. Display all dollar amounts except the final total due with 2 decimal places. Display the FINAL TOTAL DUE with a leading dollar sign and 2 decimal places. Be sure to also include a CLEAR button that will remove all inputs/outputs from the form, and an EXIT button. Define the CALCULATE button as the accept button and the EXIT button as the cancel button.
View 4 RepliesThis is what I have so far, I know it should be simple as hell, but I'm having a huge brainfart at the moment. Im going to continue messing with it though. Im trying to make it so I can input a number for a percentage, multiply that with my current array prices, and display the total in the listbox. I have a few theories on why it isnt working but cant pinpoint which one to use, I'm at a basic level to this and still learning the process. Im also pretty sure I dont have everything I need on here yet.
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This is not a problem, as my code works correctly, but a question of aesthetics. I have written a programme which compares the prices and terms of up to 10 Bidders and 500 line items in mixed currencies. For this small section of the programme, I paraphrased a jmcilhinney CodeBank example; his looked neat, mine looks ugly.
Public Class frmFinalize
Private Sub BackgroundWorker1_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
[CODE]...
i wanted to link options selected from Comb box A (general) to specific options in combo box B (specific). I want to pick a word in Combo box A that has specific words/phrases in Combo Box B show. But not all the words to show in the combo box B if they aren't associated with the Word picked in Combo Box A. Ex.When "Soda" is picked in A, only "Coke, Sprite, Fanta" should be visible in combo box b, not everything else.This is the code i used to make the boxes, but i don't know how to link them.
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' fills the combo boxes with values
Me.xGeneralComboBox.Items.Add("Soda")
Me.xGeneralComboBox.Items.Add("Juice")
[code]....
How to use a databound combo box to display one field in the drop down, and another as the combo box text on roll up? Using VS 2005... For example, I have a datatable that has 2 fields. One called "ShortDesc" and one called "LongDesc". I want to be able to see the "LongDesc" column values in the drop down on the combo box. When I make a selection, I want the text in the combo box to read the corresponding "ShortDesc" value.
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I am getting an error when i try to populate some combo boxes with a value, the combo box has values in and the right amount the code is getting the right number.
the error msg is "Object reference not set to an instance of an object."
Combo box 2 is filled based on a selection made in combo box 1 and a listview is populated based on the selection made in combo box 2.When the LostFocus event completes in combo box 1, it hits the LostFocus event in Combo Box 2 but it shouldn't. How do I prevent this from happening or if I can't prevent it, how do I work around it? The following is the code used.
Private Sub cboCategory_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboCategory.LostFocus
[code].....
I've got some code like the following. I want it so that when I chose an item in 'select 1' it changes the in the second combo box but I'm not sure of the best way to go about it. Does it have to be AJax or can it be done with just Javascript?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[code].....
I'm trying to code an 'increase' button to prompt a user to input a rate by which to increase select prices in an array.It should request the increased rate, then request a number from one to five, representing which price in the array to increase.Then, if 'increase' button is selected again and another number from one to five is chosen, then that element should be increased.It's working, but all the numbers in the array are changed. And, when I hit the increase button again, the array is repopulated below the first price increases instead of only replacing the designated price.
'declare 5 element array of prices
Dim prices() As Double = {12.2, 8.5, 12, 50, 2.4}
Dim rateIncrease As Decimal
Dim isConverted As Boolean
[code].....
is there a way to set a single cell as a combo box? it looks to me that you can only set the whole column.
View 5 Replieshow do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box. i have this code for now but it does not work
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I know how to add the items during design time but how do you add the items through code. I want to fill the combo box in the datagrid with the results of an SQL query?
View 3 Replies